A Brooklyn high-school principal and several of her staff members are in hot water for allegedly helping students cheat on course work required for them to take a Regents exam.

City school investigators said 11 students at the HS for Youth and Community Development were given answers to lab reports that they had not completed but needed to ensure a seat for the Living Environment Regents exam.

Two days before the Regents exam was to be given, Principal Marie Prendergast instructed teachers to “make sure that the students completed the labs,” according to investigators.

The students’ exams were eventually invalidated by the state Education Department.

A city Department of Education spokeswoman called the scheme “totally unacceptable,” and said the agency is reviewing the investigation’s findings to determine “appropriate disciplinary measures.”